Abstract: A method includes bending back a wire fed to a first end side of a magnetic pole in a winding position by guiding the wire from a first end side to a second end side of a multi-pole armature, so that a first extending portion, a second extending portion, and an arc portion are formed. The first extending portion and the second extending portion are continuous via the arc portion. The first extending portion and the second extending portion are parallel to each other. The first extending portion and second extending portion are simultaneously inserted into slots on both sides of one or more of the magnetic poles in the winding position by moving the wire in a radial direction of the multi-pole armature. The slots are parallel to each other. The bending back the wire step and the simultaneous insertion step are performed repeatedly.

Abstract: A stator manufacturing apparatus includes an insertion tool that is insertable into a stator core and being configured to dispose a pair of side parts of a stator coil in two holding grooves. A pressing tool has plate-like pushers arranged to correspond to the positions of the holding grooves. The pressing tool pushes out the side parts of the stator coils and inserts the side parts into the corresponding slots. A pair of shaping tools face coil end parts of the stator coils. A plurality of slits through which the pushers are insertable are provided in a principal surface of each shaping tool. A shaping tool moving unit shapes the coil end parts by pressing the pair of shaping tools in an axial direction with the pushers inserted in each of the corresponding holding grooves.

Abstract: A winding apparatus includes a nozzle for feeding a wire to a first end side of a magnetic pole in a winding position, a first latch pawl capable of latching the wire fed from the nozzle, a first latch pawl moving mechanism that moves the first latch pawl from the first end side to a second end side of the multi-pole armature, and a nozzle moving mechanism that moves the nozzle in both the radial direction and the circumferential direction of the multi-pole armature. A width of the first latch pawl in the circumferential direction of the multi-pole armature is set at a width enabling insertion of the wire wound around and bent back by the first latch pawl into slots formed on both sides of one or more of the magnetic poles in the winding position.

Abstract: Provided is a method for winding an edgewise coil and a winding device capable of saving time and labor when changing a guide. A guide bar is disposed in contact with the side face of the rectangular conductor bent by the bending jig and the rotation center of the guide bar deviates from the rotation center of a bending jig for bending a rectangular conductor. The guide bar rotates in accordance with the action whereby the bending jig bends the rectangular conductor and supports the outside surface of a coil on the side of rotational direction of the bending jig.

Abstract: A coil manufacturing device for manufacturing a coil by rotating a winding core and winding a wire around the rotating winding core, the coil manufacturing device includes a recess formed in the winding core, the recess being configured to suspend the wire wound around the winding core in the recess; and a wire bundling device configured to bundle the wire suspended in the recess.

Abstract: A winding apparatus includes a pair of first latch pawls provided with a distance therebetween so as to sandwich one of magnetic poles of a multi-pole armature, a flyer that is configured to feed a wire while rotating around the pair of first latch pawls so as to loop and wind the wire around the pair of first latch pawls, and a first moving mechanism that is configured to move the pair of first latch pawls to a position of sandwiching the one of the magnetic poles, and insert the wire wound around the pair of first latch pawls into slots formed between the magnetic poles so that the wire is wound around the one of the magnetic poles.

Abstract: A coil manufacturing apparatus 10 includes: a nozzle configured to feed a wire; a take-up jig configured to take up, through rotation, the wire fed from the nozzle; a cylindrical inner cutter tube that is provided coaxially with the take-up jig and is configured to rotate together with the take-up jig, the cylindrical inner cutter tube comprising a first slit that is formed so as to extend in an axial direction, the first slit being configured that the wire is inserted through; and an immovable outer cutter tube that is provided so as to be superimposed on an outside of the cylindrical inner cutter tube, the immovable outer cutter tube comprising a second slit that is formed so as to extend in the axial direction, the second slit being configured that the wire is inserted through.

Abstract: A stator manufacturing apparatus includes an insertion tool inserted into a stator core, the insertion tool having a plurality of holding grooves formed on an outer periphery, the insertion tool being configured such that a pair of side portions of a stator coil are disposed in two of the holding grooves separated by a predetermined width; and a pressing tool having a plurality of plate-like pushers narrowed toward tips arranged on a pressing body in correspondence with the positions of the plurality of holding grooves of the insertion tool. The pressing tool is configured to push the pairs of side portions of the stator coils inserted in the holding grooves radially outwardly and insert the side portions into the corresponding slots. A recessed groove enabling grippers to be inserted when the stator coil is disposed using the grippers for gripping the pair of side portions is formed on the outer periphery of the insertion tool.

Abstract: A winding apparatus includes a nozzle that is adapted to rotate about a core along a locus that is inclined relative to a center line of the core, wire material winding members that are adapted to guide a wire material wound via the nozzle to the core, and a core rotating mechanism that is adapted to rotate the core relative to the wire material winding members. The wire material winding members are disposed on either side of the core so as to sandwich a plane that includes both a rotary center of the nozzle and the center line of the core, whereby the wire material winding members extend in a tangential direction to the core such that respective tip ends thereof are oriented in a rotation direction of the core. The wire material is successively wound diagonally around the core.

Abstract: The coil winding device includes a nozzle configured to feed a wire to wind the wire around the winding core to form a coil, a plurality of hook rods disposed in predetermined intervals around an end part of the winding core, the wire drawn out from an edge of the coil being configured to be hooked to each of the plurality of hook rods during a forming process of the coil, a winding core rotating mechanism configured to rotate the winding core together with the plurality of hook rods, a hook rod rotating mechanism configured to rotate the plurality of the hook rods, and a wire drawing-out mechanism configured to draw out the wire from the edge of the coil and hook the wire on the hook rods during the forming process of the coil.

Abstract: A winding device includes a wire cutting mechanism for cutting the wire wound around the winding target member in the vicinity of the terminal, and a wire binding mechanism for winding, around the terminal, the end portion of the wire wound around the winding target member and cut by the wire cutting mechanism. The wire binding mechanism includes a cylindrical member through which the terminal is insertable, and a rotating mechanism for rotating the cylindrical member about the terminal. A protrusion is formed at a distal end of the cylindrical member so as to protrude in an axial direction of the cylindrical member.

Abstract: A winding device includes a nozzle holding mechanism for holding a plurality of nozzles in substantially parallel with each other, a nozzle rotation driving mechanism for rotating the nozzle holding mechanism about a rotation axis being substantially parallel with the plurality of nozzles, a spool supporting mechanism for supporting a plurality of spools in substantially parallel with each other, a spool rotation driving mechanism for rotating the spool supporting mechanism about a rotation axis being substantially parallel with the plurality of spools and being coaxially with or substantially parallel with the rotation axis of the nozzle holding mechanism, and a control unit for controlling the spool rotation driving mechanism in such a manner as to rotate the spool supporting mechanism in synchronism with rotation of the nozzle holding mechanism.

Abstract: A winding device including radially disposed nozzles of a same number as the number of teeth, a plurality of the nozzles simultaneously drawing out a wire to corresponding slots between respective teeth to simultaneously wind the wire between predetermined two slots that correspond to a respective one of the nozzles, includes a wire drawing and cutting mechanism configured to draw out the wire from a single spool and cut the drawn-out wire at a predetermined length, a wire storing mechanism configured to dispose the wire of the predetermined length obtained by the wire drawing and cutting mechanism in a radial manner and store the wire to a same number as that of the plurality of nozzles, and a wire conveyance mechanism configured to convey the radially disposed plurality of wires from the wire storing mechanism, to the plurality of nozzles.

Abstract: A winding device includes a bending mechanism for bending a rectangular wire, a feed mechanism for feeding the rectangular wire, a coil guide for supporting an edgewise coil formed by alternately repeating the feeding of the rectangular wire by the feed mechanism and the bending of the rectangular wire by the bending mechanism, and a coil-guide moving mechanism for moving the coil guide while rotating the coil guide. The coil guide includes a guide column to be brought into engagement with an inner circumference of a first coil portion having a cylindrical shape, and a guide base on which a second coil portion is to be placed, the second coil portion having a cylindrical shape connected to the first coil portion through a connecting wire and having a center axis that is shifted in position from a center axis of the first coil portion to form a stepwise shape.

Abstract: A coil manufacturing apparatus 10 includes: a nozzle configured to feed a wire; a take-up jig configured to take up, through rotation, the wire fed from the nozzle; a cylindrical inner cutter tube that is provided coaxially with the take-up jig and is configured to rotate together with the take-up jig, the cylindrical inner cutter tube comprising a first slit that is formed so as to extend in an axial direction, the first slit being configured that the wire is inserted through; and an immovable outer cutter tube that is provided so as to be superimposed on an outside of the cylindrical inner cutter tube, the immovable outer cutter tube comprising a second slit that is formed so as to extend in the axial direction, the second slit being configured that the wire is inserted through.

Abstract: An apparatus for manufacturing a non-circular coil, includes a pair of swinging pieces, an operation piece to be inserted and removed from between the distal ends of the pair of swinging pieces to increase or reduce the distance between the distal ends of the pair of swinging pieces, and a winding mechanism for winding a wire around an outer circumference of a distal end of the pair of swinging pieces so as to form a non-circular coil, wherein side surfaces of the operation piece, which avoid contact with the pair of swinging pieces, bulge outward to be curved and are formed so as to be continuous with outer circumferential surfaces of the pair of swinging pieces, around which the wire is wound, in a state in which the operation piece is inserted between the distal ends of the pair of swinging pieces.

Abstract: A plurality of relatively long wires having the same diameter are bundled together to obtain a bundle wire in a continuous wire bundling process. A wire bundling device includes a plurality of reels rotated by a rotating drive and wind a wire while a first end is engaged. A wire second-end pressing device collects and presses a second end of each of a plurality of wires having a predetermined length which is fed from a single spool and individually wound around each of a plurality of reels. The wires are withdrawn in a collected state from the reels by a withdrawing device between the plurality of reels and the wire second-end pressing device. The wire second-end press includes first and second pressing devices. The reels are rotated by an electric motor with a contact roller that rotates in contact with an outer circumference of the reel. The motor can be moved so that the contact roller selectively makes contact with the outer circumferences of the reels.

Abstract: A coil shaping device includes a plurality of rollers having an outer circumference formed with a concave groove having an arc-shaped cross section, a roller moving mechanism making the rollers move between a gripping position, at the gripping position the plurality of rollers grips the coil from surroundings of the coil, and a separating position, at the separating position the plurality of rollers is separated from the coil, and a rolling movement mechanism making the plurality of rollers positioned in the gripping position move, by the plurality of rollers being rolled in a longitudinal direction of the coil.

Abstract: Provided is a method for winding an edgewise coil and a winding device capable of saving time and labor when changing a guide. A guide bar is disposed in contact with the side face of the rectangular conductor bent by the bending jig and the rotation center of the guide bar deviates from the rotation center of a bending jig for bending a rectangular conductor. The guide bar rotates in accordance with the action whereby the bending jig bends the rectangular conductor and supports the outside surface of a coil on the side of rotational direction of the bending jig.

Abstract: The coil winding device includes a nozzle configured to feed a wire to wind the wire around the winding core to form a coil, a plurality of hook rods disposed in predetermined intervals around an end part of the winding core, the wire drawn out from an edge of the coil being configured to be hooked to each of the plurality of hook rods during a forming process of the coil, a winding core rotating mechanism configured to rotate the winding core together with the plurality of hook rods, a hook rod rotating mechanism configured to rotate the plurality of the hook rods, and a wire drawing-out mechanism configured to draw out the wire from the edge of the coil and hook the wire on the hook rods during the forming process of the coil.